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| author | Peter Collingbourne <peter@pcc.me.uk> | 2016-05-31 23:01:54 +0000 |
|---|---|---|
| committer | Peter Collingbourne <peter@pcc.me.uk> | 2016-05-31 23:01:54 +0000 |
| commit | cceae7feda8e33194d1a6c5963bd4114bb8d2b36 (patch) | |
| tree | d7f155b4ea8004651b1aadf412465b0d3950f9e6 /llvm/docs | |
| parent | 81fbadb63f4d28f62950e2e2c4967f1429b3ca55 (diff) | |
| download | bcm5719-llvm-cceae7feda8e33194d1a6c5963bd4114bb8d2b36.tar.gz bcm5719-llvm-cceae7feda8e33194d1a6c5963bd4114bb8d2b36.zip | |
Add support for metadata attachments for global variables.
This patch adds an IR, assembly and bitcode representation for metadata
attachments for globals. Future patches will port existing features to use
these new attachments.
Differential Revision: http://reviews.llvm.org/D20074
llvm-svn: 271348
Diffstat (limited to 'llvm/docs')
| -rw-r--r-- | llvm/docs/BitCodeFormat.rst | 10 | ||||
| -rw-r--r-- | llvm/docs/LangRef.rst | 5 |
2 files changed, 13 insertions, 2 deletions
diff --git a/llvm/docs/BitCodeFormat.rst b/llvm/docs/BitCodeFormat.rst index edab66ead64..ac051c49bc8 100644 --- a/llvm/docs/BitCodeFormat.rst +++ b/llvm/docs/BitCodeFormat.rst @@ -856,6 +856,16 @@ be one ``GCNAME`` record for each garbage collector name referenced in function ``gc`` attributes within the module. These records can be referenced by 1-based index in the *gc* fields of ``FUNCTION`` records. +MODULE_CODE_GLOBALVAR_ATTACHMENT Record +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +``[GLOBALVAR_ATTACHMENT, valueid, n x [id, mdnode]]`` + +The ``GLOBALVAR_ATTACHMENT`` record (code 19) describes the metadata +attachments for a global variable. The ``valueid`` is the value index for +the global variable, and the remaining fields are pairs of metadata name +indices and metadata node indices. + .. _PARAMATTR_BLOCK: PARAMATTR_BLOCK Contents diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst index 4882ac106b8..2a1c7a00049 100644 --- a/llvm/docs/LangRef.rst +++ b/llvm/docs/LangRef.rst @@ -619,7 +619,8 @@ assume that the globals are densely packed in their section and try to iterate over them as an array, alignment padding would break this iteration. The maximum alignment is ``1 << 29``. -Globals can also have a :ref:`DLL storage class <dllstorageclass>`. +Globals can also have a :ref:`DLL storage class <dllstorageclass>` and +an optional list of attached :ref:`metadata <metadata>`, Variables and aliases can have a :ref:`Thread Local Storage Model <tls_model>`. @@ -630,7 +631,7 @@ Syntax:: [unnamed_addr] [AddrSpace] [ExternallyInitialized] <global | constant> <Type> [<InitializerConstant>] [, section "name"] [, comdat [($name)]] - [, align <Alignment>] + [, align <Alignment>] (, !name !N)* For example, the following defines a global in a numbered address space with an initializer, section, and alignment: |
